18653456

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{21997}}^1$

素因数の和:22058

約数の個数: 20

約数和(自身を含む): 36824652

約数和(自身を除く): 18171196

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 21997, 43994, 87988, 175976, 351952, 1165841, 2331682, 4663364, 9326728, 18653456]

約数ペア:

[(1, 18653456), (2, 9326728), (4, 4663364), (8, 2331682), (16, 1165841), (53, 351952), (106, 175976), (212, 87988), (424, 43994), (848, 21997)]